Studies on ζ-potential of positive sol of magnesium aluminum hydroxide

被引：0
|
作者：
Han, SH
Hou, WG
Dong, Q
Sun, DJ
Huang, XR
Zhang, CG
机构：
[1] Shandong Univ, Inst Colloid & Interface Chem, Key Lab Colloid, Jinan 250100, Peoples R China
[2] Shandong Univ, Inst Colloid & Interface Chem, Interface Chem State Educ Commiss, Jinan 250100, Peoples R China
来源：
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 1999年 / 15卷 / 01期
关键词：
zeta-potential; isoelectric point; magnesium aluminum hydroxide; prediction;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The IEP of magnesium aluminum hydroxide was predicted with the modified Yoon's equation, and the effect of electrolyte on the zeta-potential of the sol was studied by electrophoresis method. The results showed that the calculated IEP values with the modified Yoon's equation agreed well with the experimental ones. With the increase of the ionic radius of monovalent anions (Cl-, Br-, I-) the zeta-potential decreased. The same was true for CO32- SO42- but the sign of the zeta-potential reversed from positive to negative. For Al3+, Ca2+, Mg2+, however, the zeta-potential increased with the increase of the concentration of Al3+, Ca2+, Mg2+.
引用
收藏
页码：58 / 62
页数：5
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